Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
2013-14 Shelby GT500
2.4 pulley or underdrive crank pulley?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Willie" data-source="post: 16674611" data-attributes="member: 14133"><p>There's the best way and the other way. Your car is unique, like everyone else's. Datalog YOUR car, then evaluate where you are. Fuel pump duty cycle, fuel injector duty cycle, timing, load, etc..... This is the scientific method. Then there's "trusting" others. It's your choice. It's your car.</p><p></p><p>As for increasing boost by changing pullies, my personal preference is to go with the oversize crank. For several reasons. You don't need an additional idler, belt slippage is not an issue, in fact probably increased with the larger crank pulley AND when I was running this setup and going through tech at the track, I would always point out that my pulley is STOCK.... So from the top, it looked stock, if that matters. lol... FYI, the 15 percent over is good for 4-psig.</p></blockquote><p></p>
[QUOTE="Willie, post: 16674611, member: 14133"] There's the best way and the other way. Your car is unique, like everyone else's. Datalog YOUR car, then evaluate where you are. Fuel pump duty cycle, fuel injector duty cycle, timing, load, etc..... This is the scientific method. Then there's "trusting" others. It's your choice. It's your car. As for increasing boost by changing pullies, my personal preference is to go with the oversize crank. For several reasons. You don't need an additional idler, belt slippage is not an issue, in fact probably increased with the larger crank pulley AND when I was running this setup and going through tech at the track, I would always point out that my pulley is STOCK.... So from the top, it looked stock, if that matters. lol... FYI, the 15 percent over is good for 4-psig. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
2013-14 Shelby GT500
2.4 pulley or underdrive crank pulley?
Top